<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>动态组件与v-once指令</title>
	<script src='./vue.js'></script>
</head>
<body>
	
	<div id="root">
		<!-- <component :is="type"></component> -->
		<child-one v-if="type ==='child-one'"></child-one>
		<child-two v-if="type ==='child-two'"></child-two>
		<button @click="handleBtnClick">change</button>
	</div>

	<script>

		Vue.component('child-one', {
			template: '<div v-once>child-one</div>'
		})

		Vue.component('child-two', {
			template: '<div v-once>child-two</div>'
		})

		var vm = new Vue({
			el: '#root',
			data: {
				type: 'child-one'
			},
			methods: {
				handleBtnClick: function() {
					this.type = (this.type === 'child-one' ? 'child-two': 'child-one');
				}
			}
		})


	</script>

</body>
</html>